Abstract: The present invention relates to the field of generating gaseous hydrogen at high pressures and with high purity via electrolysis of water by means of an electrolyzer unit (100) with a novel structure.
Type:
Grant
Filed:
August 20, 2018
Date of Patent:
August 8, 2023
Assignee:
THALESNANO ZRT
Inventors:
Csaba Janáky, Egon Kecsenovity, Antal Danyi, Balázs Endrödi, Viktor Török, Ferenc Darvas, Richard Jones
Abstract: The invention relates to a porous electrode used in an electrochemical cell, containing a carrier and/or catalytic agent, which is characterized by that it consists of two or more layers with different average pore sizes, out of which layers the contact layer with the smallest average pore size is in contact with the membrane, and one or more supporting layers with a greater average pore size are linked to the other side of this contact layer. Furthermore, the invention relates to a procedure for the manufacturing of such electrodes and to electrochemical cells containing such electrodes.
Type:
Grant
Filed:
December 22, 2006
Date of Patent:
April 10, 2012
Assignee:
ThalesNano Zrt.
Inventors:
Ferenc Darvas, Dániel Szalay, Lajos Gödörházy
Abstract: A process for hydrogenating a sample in a pressure range below supercritical pressure values includes supplying at least a solvent of the sample to be hydrogenated by a feed pump with a constant volume rate into a flow path to create a base solution; adding the sample being dissolved into the flow path; feeding hydrogen into the flow path through a valve configured to transmit hydrogen only into a single direction; leading the dissolved sample in the presence of a catalyst through a hydrogenation reactor, where the reactor is inserted into a section of the flow path located after the hydrogen feeding position; maintaining the pressure of the reaction in a given pressure range by element of a pressure-adjusting unit, and collecting a hydrogenate formed within the hydrogenation reactor in a product receptacle connected to the end of the flow path.
Type:
Grant
Filed:
October 19, 2010
Date of Patent:
August 2, 2011
Assignee:
ThalesNano Zrt
Inventors:
Ferenc Darvas, Lajos Godorhazy, Tamas Karancsi, Daniel Szalay, Ferenc Boncz, Laszlo Urge
Abstract: A process for hydrogenating a sample in a pressure range below supercritical pressure values includes supplying at least a solvent of the sample to be hydrogenated by a feed pump with a constant volume rate into a flow path to create a base solution; adding the sample being dissolved into the flow path; feeding hydrogen into the flow path through a valve configured to transmit hydrogen only into a single direction; leading the dissolved sample in the presence of a catalyst through a hydrogenation reactor, where the reactor is inserted into a section of the flow path located after the hydrogen feeding position; maintaining the pressure of the reaction in a given pressure range by element of a pressure-adjusting unit, and collecting a hydrogenate formed within the hydrogenation reactor in a product receptacle connected to the end of the flow path.
Type:
Application
Filed:
October 19, 2010
Publication date:
February 10, 2011
Applicant:
THALESNANO ZRT.
Inventors:
Ferenc Darvas, Lajos Gödörházy, Tamás Karancsi, Dániel Szalay, Ferenc Boncz, László Ürge
Abstract: A laboratory scale continuous flow hydrogenation apparatus (100) includes a reservoir (104), a feed pump (102), a mixing element (108) with two inlets and an outlet, a hydrogenation reactor (110) and a pressure-adjusting unit (112), all connected into a flow path. A hydrogen source (126) and a one-way valve (120) are arranged between the hydrogen source (126) and the second inlet of the mixing element (108). The feed pump (102) can provide a constant volume rate. The reservoir (104) contains at least a solvent base solution of the sample to be hydrogenated. The hydrogenation reactor (110) connects into the flow path by detachable connections and is formed as a replaceable cartridge containing a packing which increases the flow resistance and facilitates mixing. The pressure-adjusting unit (112) connects into the flow path after the hydrogenation reactor (110) and is provided with a regulation controlled electrically.
Type:
Grant
Filed:
November 7, 2006
Date of Patent:
November 23, 2010
Assignee:
ThalesNano Zrt.
Inventors:
Ferenc Darvas, Lajos Gödörházy, Tamás Karancsi, Dániel Szalay, Ferenc Boncz, László Ürge
Abstract: A laboratory-scale hydrogenation cartridge reactor for hydrogenating an inflowing multi-component fluid composition includes a flow inlet defining an inflow cross-section and used for introducing the fluid composition, a flow outlet defining an outflow cross-section for discharging the hydrogenated fluid, a closed reaction volume extending between and communicating with the inlet and outlet and having a useful space of at most 10 cm3. The reaction volume is filled with an immobilized packing medium that increases flow resistance and facilitates mixing of the fluid composition. The flow inlet and the flow outlet are formed with respective detachable connection structures. A steep transitional zone is defined between the inflow side of the reaction volume and the flow inlet, wherein the cross-section of the widest portion of the steep transitional zone where the zone communicates with the reaction volume is significantly larger than the inflow cross-section.
Type:
Application
Filed:
February 22, 2007
Publication date:
September 13, 2007
Applicant:
THALESNANO ZRT.
Inventors:
Ferenc Darvas, Lajos Godorhazy, Tamas Karancsi, Daniel Szalay, Ferenc Boncz, Laszlo Urge